The Elm Research Center in Holbrook Palmer Park in Atherton where city officials are growing disease resistant trees to combat the infestation of...
First Ave "Dutch Elm Disease" Here we have a shot of Dave Cummings foreman, for swingle tree Co. Trimming down the big branches so tree can be cut...
An elm tree trunk showing its hollow heart after it had apparently been killed by Dutch Elm Disease. Original Publication: Picture Post - 7037 -...英國
Elm trees in Richmond Park that have unfortunately succumbed to the Dutch Elm Disease are marked with a white cross for felling.英國
An elm bark beetle gallery created by the beetles that spread Dutch elm disease can be seen in the light colored markings on a dead elm tree on May...
Adrienne Bartlett, land management fellow with the Nature Conservancy, injects a young elm with Dutch elm disease on May 19, 2026.
Notice of Pesticide application on neighborhood trees suffering from Dutch Elm Disease, Queens, New York.
the tree trunk of a dead english elm tree, ulmus procera, that has been killed by dutch elm disease in woodland in the uk. - 荷蘭榆樹病 個照片及圖片檔
Denver Forester Ray Howe stands next to a tree that has been killed by Dutch Elm Disease. He used the hammer to pull away the bark to show us some...
Biologist John Tomalin applying to an infected tree at Glaston, near Uppingham, a treatment which claims to be a breakthrough in the fight against...
Trees in the Long Walk, Windsor, which were planted by Charles the Second, are being felled owing to elm disease. Every effort to check this disease...
The research pathologist Dr. John Gibbs and research forester Jim Dickinson , employees of the Forestry Commission, demonstrate an injection...
Dr John Giggs, a research pathologist for the Forestry Commission, and Jim Dickinson, pumping fungicide into a 'guinea pig' elm tree in St James'...
Adrienne Bartlett, Land Management Fellow with the Nature Conservancy, injects a young elm with Dutch elm disease on May 19, 2026.
Alex Stephenson, conservation information manager for The Nature Conservancy, injects a young elm with spores Dutch elm disease on May 19, 2026.
Adrienne Bartlett, land management fellow with the Nature Conservancy, prepares a pipette with Dutch elm disease on May 19, 2026.
Adrienne Bartlett, land management fellow with the Nature Conservancy, Josh Wigal, biological science technician with the US Forest Service Northern...
Adrienne Bartlett, Land Management Fellow with the Nature Conservancy, injects a young elm with Dutch elm disease on May 19, 2026.
More than 6,000 young elms at this site will be injected with spores of Dutch elm disease on May 19, 2026.
Adrienne Bartlett, Land Management Fellow with the Nature Conservancy, walks down a row of young elms as she works to inoculate each one with Dutch...
Alex Stephenson, conservation information manager for The Nature Conservancy, injects a young elm with Dutch elm disease on May 19, 2026.
Alex Stephenson, conservation information manager for The Nature Conservancy, uses orange spray paint to mark a young elm that he inoculated with...
Chris Hansen, research specialist with the University of Vermont, records information about each young elm tree in the row so that it can be...
Chris Hansen, research specialist with the University of Vermont, records information about each young elm tree in the row so that it can be...
Adrienne Bartlett, land management fellow with the Nature Conservancy, Jim Warren, Biological Scientist with the US Forest Service Northern Research...
Josh Wigal, biological science technician with the US Forest Service Northern Research Station, clears the brush around a small Elm sapling so that...
Adrienne Bartlett, Land Management Fellow with the Nature Conservancy, walks down a row of young elms as she works to inoculate each one with Dutch...
Alex Stephenson, conservation information manager for The Nature Conservancy, fills a pipette with Dutch elm disease to inject into a young elm tree...
Alex Stephenson, conservation information manager for The Nature Conservancy, injects a young elm with Dutch elm disease on May 19, 2026.
old engraved illustration of entomology, breeding colony of the larger european elm bark beetle or large elm bark beetle (scolytus scolytus), a 3.5–6 mm long bark beetle species - dutch elm disease - 荷蘭榆樹病 個照片及圖片檔
old engraved illustration of entomology, the larger european elm bark beetle or large elm bark beetle (scolytus scolytus), a 3.5–6 mm long bark beetle species - dutch elm disease - 荷蘭榆樹病 個照片及圖片檔
Arbres atteints par la graphiose de l'orme dans la réserve indienne de Pine Ridge dans le Dakota du Sud, dans les années 1970.
Common small-leaved elm tree, Ulmus campestris, with flower, leaf and elm bark beetle, Scolytus multistriatus. Handcoloured zincograph by C. Chabot...
Field elm tree, Ulmus minor. Handcoloured botanical illustration drawn by G. Reid and engraved on steel by Edward Smith Weddell from John Stephenson...
